• S 4: Ep 9 Pyramids: Majesty and Mystery
    3/23/97
  • S 4: Ep 2 The Telephone
    9/15/96
  • S 3: Ep 9 The Railroads That Tamed the West
    2/4/96
  • S 3: Ep 3 Silver Mines
    10/1/95
  • S 1: Ep 3 Panama Canal